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Consider the element Phosphorus 30P. How many electrons are in the outermost electron shell of a phosphorus atom?
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∙ 13y ago
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What is the correct formula for a compound of phosphorus and hydrogen?
I dont really know.... glad I could help Please consider environment before reading this awww gimberoo
Consider the following and determine if they are polar H3O plus PCl5 H2S and CF4?
H3O+- polar,asymmetrical (hydronium cation) PCl5 - polar asymmetrical (phosphorus pentachloride) H2S - polar, symmetrical (hydrogen sulfide) CF4 - polar symmetrical (carbon tetrafluoride)
What does the Lewis structure for p4 look like?
If you consider the tetrahedron structure of P4, each P atom is engaged in 3 covalent bonds, and and a doublet is left (Remember that P has 5 external electrons). It is like any trivalent phosphorus compound: put two dots on each covalent bond, and a non bonding electron pair on each P. So each P atom is surrounded by 8 electrons. JF Gal gal@unice.fr
Do have electrons negative charge?
Yes it does. If that isn't enough to blow your mind yet, then consider this:Every electron has exactly the same amount of negative charge.
Why cesium required little energy to release its one electron present in the outermost shell?
Generally in an atom, there is an Effective Nuclear Charge which binds the electrons and nucleus (protons basically) together. So, more protons and less electrons means a LOT of nuclear charge,i.e., the positive charge must be more because that is what is responsible for the nuclear charge. Also, less electrons means, more closer the shells will come, i.e., more closely the shells will be bound by the nucleus (Because there is little screening of nuclear charge by the inner electrons. To understand this, imagine a point source of light. If someone taller than you stands in front of you, then you will receive lesser light from the source. This is exactly what happens with the nuclear charge). But, in this case (Cesium), the number of protons is not more. The protons and electrons are same in number ,i.e., it is a neutral atom. Thus, there is lot of screening effect taking place. The outermost (Valence) electrons get the least Nuclear Charge. This means, they are not under the strong influence of nucleus and hence are loosely bound. Thus, very little energy is required to remove them. If you consider any element of the same group like Sodium, it has lesser number of shells. Hence, the screening effect is lesser than in Cesium (In the above example, consider you standing behind 2 or 3 people. This means, you will get lesser energy -like the Cesium's last electron). So, sodium's valence electrons will require more energy to be removed than Cesium.
Consider the element Phosphorus 30P The number 30 represents the?
mass number
The number of electrons in the outermost shell of an element is 5 what is its valency and why?
Its valency is 3 i.e. 8-5.The element is a non metal since it has 5 electrons in the outermost shell.Hence, it is very difficult for the element to loose 5 electrons and would be easier togain 3 electrons .Hence, the element gains 3 electrons and thus we consider its valencyto be 8- no. of valence electrons.
What is the correct formula for a compound of phosphorus and hydrogen?
I dont really know.... glad I could help Please consider environment before reading this awww gimberoo
How do you use eh?
•You can use Eh and pH to nearly completely describe the speciation of compounds in fluids •Calculating the Eh -The Nernst equation •Consider phosphorus chemistry
Some of the uses for phosphorous are?
Phosphorus-32 decays to sulfur-32 by beta radiation.In phosphorus' nucleus, a neutron splits into a proton and an electron. The electron is emitted from the atom as a beta particle.
What are six elements that make up 99 percent of living matter?
Hydrogen, oxygen, nitrogen, carbon, phosphorus, and sulfur The living organism mainly consists of Carbon, hydrogen and oxygen after that nitrogen, phosphorus and sulfur comes they all consider as major elements The order is oxygen 65.0%, carbon 18.5%, hydrogen 9.5%, and nitrogen 3.3% making a total of 96.3%.
Why do elements become ion?
Atoms form ions to increase their stability. For example consider sodium which has a single electron in its outermost shell. If it looses this electron it will have a complete octet in its outermost shell which is way more stable than a single electron in the outermost shell. So to increase their stability in a way that is energetically feasable, atoms usually form ions.
Consider the following and determine if they are polar H3O plus PCl5 H2S and CF4?
H3O+- polar,asymmetrical (hydronium cation) PCl5 - polar asymmetrical (phosphorus pentachloride) H2S - polar, symmetrical (hydrogen sulfide) CF4 - polar symmetrical (carbon tetrafluoride)
What does the Lewis structure for p4 look like?
If you consider the tetrahedron structure of P4, each P atom is engaged in 3 covalent bonds, and and a doublet is left (Remember that P has 5 external electrons). It is like any trivalent phosphorus compound: put two dots on each covalent bond, and a non bonding electron pair on each P. So each P atom is surrounded by 8 electrons. JF Gal gal@unice.fr
Is phosphor bronze FDA compliant?
Phosphor bronze is not FDA compliant. It contains copper, tin, and phosphorus, which are not approved materials by the FDA for direct food contact. If you need a material that is FDA compliant, consider using stainless steel or food-grade plastics instead.
When is a substance limiting nutrient?
A nutrient is considered "limiting" when it is in low enough quantities to prevent organisms from surviving. Organisms need several different types of nutrients to survive, but to illustrate the point, I will simplify it to three basic elements, carbon, nitrogen, and phosphorus. Consider a hypothetical plant that needs 10g of carbon, 20g of nitrogen, and 2 grams of phosphorus in the soil to grow. If the soil contains 10g of all three, then nitrogen would be limiting and would prevent the plant from growing, despite having 500% of the required phosphorus. You could add all the carbon and phosphorus you wanted and it wouldn't help. If you add 10g of nitrogen to the soil however, you will see plant growth. There are two impacts to the concept of supplying a "limiting nutrient" to an ecosystem. The first is negative, when a nutrient that is currently limiting algal growth (usually nitrogen or phosphorus) is added to a body of water, you get an algal bloom or red tide. The second impact can be positive if an ecosystem is missing something it needs to flourish, then adding that nutrient would be necessary to maintain that ecosystem. I have a vague memory of a small amount of a non-consumable micronutrient (possibly manganese) being added to a barren field resulting in abundant herbacious growth. (Anyone else know specifics? I can't remember the exact study.) This "positive" concept can also be seen in agriculture a where a farmer would add the necessary nutrients as fertilizer to his crops. Of course too much fertilizer can cause the negative aspect I talked about earlier if this fertilizer runs off into waterways and causes the algal blooms .
What is a main storage pool for phosphorus?
The question "what is a main storage pool for phosphorous" is a leading and ambiguous question that additionally assumes a container referred to as a (if the 'container' assumption is correct) "storage pool". This question requires work as well as a clear definition of terms. What is a storage pool? Is the fact that phosphorus is never encountered in it's pure form of any relevance? That said, Phosphorous is a solid, nonmetallic element existing in at least three allotropic forms, one that is yellow, poisonous, flammable, and luminous in the dark, one that is red, less poisonous, and less flammable, and another that is black, insoluble in most solvents, and the least flammable. The element is used in forming smoke screens, its compounds are used in matches and phosphate fertilizers, and it is a necessary constituent of plant and animal life in bones, nerves, and embryos. Symbol: P; atomic weight: 30.974; atomic number: 15; specific gravity: (yellow) 1.82 at 20°C, (red) 2.20 at 20°C, (black) 2.25-2.69 at 20°C. In the natural world phosphorous is never encountered in its pure form, but only as phosphates, which consists of a phosphorous atom bonded to four oxygen atoms. This can exists as the negatively charged phosphate ion (PO43-), which is how it occurs in minerals, or as organophosphates in which there are organic molecules attached to one, two or three of the oxygen atoms. In water, white phosphorus will not be reacting with other particles quickly as it does in soil and air and as a result it accumulates in the bodies of aquatic organisms, both plant and animal species. In soil phosphorus can remain for several days before it is converted into less harmful substances naturally by normal chemical processes. In deep soils however, and the bottom of rivers and lakes phosphorus may remain for a thousand years or so. Many phosphate minerals exist. Apatite is the most abundant. Fluoroapatite contains the phosphates deposits that are most extensively mined, primarily in Russia, USA, Tunisia, Morocco, Togo and Nauru. The worlds total of 153 million tons are mined each year. So, what is a main storage pool for phosphorus? Fertilizer? Considering that 90% of all mined phosphorus is used in fertilizer, perhaps that is the answer. Aquatic plants and organisms? Phosphorus accumulates underwater in aquatic species where it is safe from natural combining processes that destroy it. In deep water and soils? Phosphorus can accumulate and remain for thousands of years in deep soils and water. In Fluoroapatite? Phosphorus is produced from phosphors and does not exist naturally. It must be mined as fluoroapatite and extracted as phosphors, then converted. So which is it? . . . In people and other mammals? If one considers that phosphorous collects in urine, and in fact that is is there it was first discovered, are we the storage pools, along with all other mammals? In munitions? Another view may consider the worlds military supply of white phosphorus (WP or Willie Peter in the American Military) as used in weaponry to be abundant enough that it can be considered a storage pool (and many hope it will continue to be stored, not utilized) Additionally, consider what the term "Storage pool" means. As taken in the usual sense, is a place where something is kept, generally in abundant supply or as a working and complete group, or in mass, often naturally, to be retained until needed for use. Since phosphors, once mined and extracted as white phosphorus, will readily combine with oxygen and immediately begin to dissipate in flames, it is stored under water, usually in containers, until utilized in fertilizer production. Does this mean, In containers under water? is the correct answer? Perhaps this question was a bit more difficult that expected and this is not the answer desired, but questions with embedded assumptions may require and/or receive more than expected within a complete and considered response. John M. Cook
